I am trying to get all the processes listening for a network connection on Mac OS X. netstat does not have the -p option and I am trying with lsof

lsof -i -sTCP:LISTEN

gives me a fair list of listening processes but not all. I can for example telnet to port 10080 where I have a process listening for a connection but this is not shown in the output of lsof. What am I missing?